戴尔米亚项目问题澄清.doc

1.Points no 3 : You have proposed 50kg/m for stacker and QU-80 for reclaimers. Dalmia want CR80 for stacker and Reclaimer both and i have agreed. Please make note.NHI reply: The India standard CR80 rail can not be bought in China, while Chinese standard QU80 rail could be used as a substitution. The dimension and basic data of CR80 and QU80 are nearly the same. One consequence is that the weight of stacker will increased.JN: As confirmed, please quote for QU80 rails for Stackers and Reclaimers2.Point No 6/7: Please ensure that the stacker feed belt and the reclaimer belt (yard conveyors) have the same speed as those supplied for Cudappah and Ariyular Projects of Dalmia. Please check Belt width and select accordingly.NHI reply: NHI confirms.3.Point No 8: Please include the 2 No Bag filters for the Midnapore Project in your Commercial Offer, I have agreed for the same.NHI reply: NHI confirms that the 2 nos of bag filter for Midnapore Project are not included in NHI commercial offer. The price for each filter is USD 19,672.13, totally USD 34,344.26.JN: OK , please include these in your final prices when we submit revised price offer.4.Point No 25: Please provide safety switches etc as provided in the Ariyalur/Cudappah ProjectsNHI reply: NHI confirms.5.Point No 47: Please note that LT motors mean Low Tension Motors or motors for 415 V duty.NHI reply: NHI confirms.6.Point No 48: one Laptop would be required for the Meghalaya and one no Laptop for the Midnapore Project.NHI reply: NHI confirms.7. Point No 49: UPS shall be provided for the PLC and SCS of Stacker an also for the PLC and SCS of Reclaimer. The considered battery back-up would be for 1 hr only. This is standard。NHI reply: NHI confirms.8. Additional PLC hardware for centralised operation of Stacker reclaimer. This is to say that they Stacker Reclaimer would be able to operate form the CCR in auto mode.NHI would supply all required system and hardware for the same. This is standard.NHI reply: NHI confirms.KSN-NHI REPLY TO TECHNICAL CLARIFICATION1. Point No 5: The Belt Conveyor speed would be 1.5 m/sec. The Belt Conveyor Speedwould be same as supplied for the Cudappah/Ariyalur Project.Please check Belt with accordingly.NHI reply: NHI confirms.2.Point No 6: The stacking Pattern for the Stackers would be same as supplied for the Cudappah/Ariyalur ProjectNHI reply: NHI confirms.3. Point No 7: You have indicated the Limestone Stacker feed belt conveyor rating as 315 kw. Please recheck.NHI reply: Thank you for your reminding. It should be 355kw.JN: Dalmia feel that this would be lower that 315 KW. Please recheck4.Point No 9: The Self Aligning Return Idlers would be at spacing of 30,000 mm and not 3,000 mm. Please note.NHI reply: NHI confirms.5 Point No 10: Please provide Appx weights of the Stacker/Reclaimer/Rails. This is not to difficult。NHI reply:YG600/95 equipment weight：99.7t; rail and accessories weight：(QU80)73.9tDB300/17.6 equipment weight：87.5t; rail and accessories weight：51.8t for P50 and 61.6t for QU80QGC150/27.4 equipment weight：99.7t; rail and accessories weight：(QU80)73.9tDB500/17.6 equipment weight为：89.6t; rail and accessories weight：45.6t for P50 and 53.8t for QU80QGC250/27.4 equipment weight：271.8t; rail and accessories weight：(QU80)38.7t6.Point No 11. Plant air is required for the Bag filters would be required for the purging of the bag filters. Dalmia would provide the plant air at 6.5-7 kg/cm2 at below the transfer towers on which the bag filters are mounted. The piping form the ground level of the transfer towers till the bag filters would be in NHI scope.NHI reply: NHI confirms that the 2 nos of bag filter for Midnapore Project are not included in NHI commercial offer. The price for each filter is USD 19,672.13, totally USD 34,344.26.7.Point 12: Dalmia have indicated the type of pipes to be used for the Water, air and oil , on the equipment,please follow their suggestions.NHI reply: NHI confirms.8.Point 13: The Elcetrodes required at Site would be in Dalmia scope.NHI would give the technical specifications.NHI reply: NHI confirms.9. Point no 16. The stacker LT motors are with Variable Frequency Drives. The speed can thus be varied. At the end of the stockpiles, when the stacker gradually stops and starts back in the opposite direction, the speed curve on the VFD should be chosen such so that the yard conveyor belting over the tripper Car pulley does not slip. it is quite standard and I have agreed.NHI reply: NHI confirms.10.Point 17: The Plummer blocks on the wheels shall be of the same type as those supplied for Cudappah/Ariyalur project.NHI reply: NHI confirms.11. Point 20: GRR set for PCRD: Please supply same system as supplied for Cudappah/Ariyalur.NHI reply: NHI confirms.DEVIATION LIST1. Point 4: All Chutes within within NHI equipment and from NHI equipment feeding to Others scope equipment shall be in NHI scope. Please ask me if there is any doubt.NHI reply: All chutes could be supplied by NHI, while the information of “Other scope” equipment should